When it comes to keeping children's feet dry and warm, the Southpole 4 is worth considering. Both the nylon upper and the flexible synthetic rubber shell are waterproof, providing good protection against moisture, especially with the sealed seams. The warmth comes from the removable 6 mm thick Zylex insole with moisture-absorbing inner lining. For size adjustment, there is a bungee closure around the midfoot, and the snow collar can also be adjusted with a bungee closure. The Southpole 4 is completed with the PIONEER outsole made of synthetic rubber, which promises good grip even in slippery conditions. Kamik's patented Zylex technology is the ultimate innovation for excellent heat and moisture management. The revolutionary three-layer design wicks sweat away from the feet while retaining body heat inside and keeping the cold out. With additionally reinforced seams and heel protection, long durability is ensured. The inner shoe is easily removable for washing and drying. The Kamik 6 mm Zylex inner shoe keeps feet warm down to -32 °C, while the 8 mm Zylex inner shoe is warm down to -40 °C. Upper material: synthetic. Upper material: nylon / synthetic rubber shell around the foot. Sealed seams. Lining: 6 mm Zylex (97% recycled content). Closure system: quick-lacing system. Features: removable inner shoe. Crampon compatibility: not crampon-compatible. Closure system: double bungee lacing system. Sole type: rubber. Outsole: PIONEER outsole made of synthetic rubber. Fit: regular cut. Design: high cut. Application area: leisure. Waterproof. Weight per pair: 700 g. Waterproof and flexible rubber protection around the foot. Adjustable snow collar with drawstring on the shoe. Shoe height: 23 cm.